Carriage-curtain fastener.



No. 874,083. PATENTED DEG. 17, 1907.

W. s. JONAH. CARRIAGE CURTAIN FASTENBR.

APPLIOATION FILED MAR. 16, 1907.

. tener.

so as to engage the UNITED STATES PATENT OFFIQE.

WILLIAM S. JONAH, OF MERRIMAC, MASSAGH USETTS, ASSIGNOE TO JOYAH d: GEORGE, OF MERRIMAG, MASSACHUSETTS, A FIRM.

":RBIAGE-CUBTAIN FASTENER.

Application and March 16,1907. Serial No. 362,748.

To all whom it may concern:

Be it known that I, \YILLIAM S. JONAH, of Merrimac, in the county of Essex and State of Massachusetts, have invented'certain new and useful Improvements in Carriage-Curtain Fasteners, ofwhich the following is a specification.

This invention relates to devices for securingthe curtains of carriages and other vehicles or structures, the invention belonging to that class of fasteners comprising a base adapted to be attached to a portion of a carriage frame, and having a shank projecting outwardly from one side, and a button formingan extension of the shank, and adapted to turn'thereon, and having yielding engagementgtherewith in different positions, the shank and button having the same cross sectional area, and being elongated so that when the button is turned to one position it will be in alinement with the shank, and will constitute simply an extension thereof, per mitting an eye in a carriage curtain to be moved freely on to and off from the shank. When the button is given a quarter turn from; said position, it will stand crosswise of the shank, and project from the sides thereof eye of a carriage curtain surrounding the shank, and prevent the eye from beingremoved from the shank.

The invention has for its object to provide a simple, durable and effective fastening device of this character,- in which outward pressure exerted by the curtain against the but ton when the latter is turned crosswise of the shank, will increase the firmness with which the button is locked, so that there will be no liability of accidental turning of the button to its unlocking position.

The invention consists in the improvements which .I will now proceed to describe and claim.

Of the accompanying drawings, forming a art of this s ecification Figure 1 represents, a side el evation-of a curtain fastener embodying my invention. Fig. 2 represents an end elevation of the same. Fig. 3 repre sents a sectionon line 3-8 of Fig. 2. Fig. 4 represents asection on line a e of Fig. 1. Fig.5 represents a bottom view of the fas- Figs. 6 and 8 represent perspective views of parts detached. Fig. 7 represents a view similar to Fig. 4, showing the condition of the stem and button b fore they are per manently united.

I l l t tached. to the from the inner-end face thereof.

The same letters of atented Dec. 17, 1907.

reference indicate the same parts in. all the figures.

In the drawings (1 represents the base, and

l) the shank of my improved fastener, these parts being cast gle piece, the shank or otherwise formed in a sinpro ecting from one side of the base, and the base being provided with holes 0 c to receive attaching screws.

, (1 represents the button, inner end face bearing upon face of the shank.

which has a fiat the flat outer end c represents a stem which is rigidly atbutton,

is of cylindrical form, lnner end with a head which are formed radial ribs 9. The

is preferably attached 111g its formed and projects inwardly The stem and. is provided at its f on the inner side of stem to the button by havouter end portion inserted in a hole for its reception 1n the button, stem being provided with recesses c.

the The side portions of the button, which is of suitable malleable materi pressed inwardly to f entering the recesses e,

the button and stem interlocked. vided with a recess al, such as brass, are orm. protuberances d" as shown in Fig. 4, being thus securely The base andstem are prohaving an enlarged outer ortion h opening at the inner or under side of the base.

The outer portion of the shank b has a circular opening 'i, which closely fits the stem 6, and

constitutes a bearing in which the stem is adapted both to rotate and move endwise. 7 represents a central opening sheet,

metal. plate having a It adapted to receive the stem e and bo ses or sockets m, corresponding in form and arrangement to the Ll'OS g on the head. of the stern.

ribbed side of placed on the stem, and 1s means of a he pressed recess in the shank.

The plate 9' is the head of against the latter by ical spring 0 contained in. the

The plate 7' and the portion of the recess in which it is located,

are rectangular or of -that the plate cannot lines inlFigs. i and 2.

or in a position equivalent form, so rotate in the recess. The arran ement of the sockets m and ribs g is such that other, and hold the b ment with the shank,

in 1 and 2,

they will engage each utton either in alineas shown by full lines 1 at right as shown by dotted The pressure of the spring against the plate j not only holds the button against the on ter. end of the shank, lie

but also holds the sockets of the plate in engagement with the ribs of the stem head. Any outward pressure on the button tending to separate it from the shank, will increase the stress of the spring, and thus make the engagement between the sockets m and ribs 9 more firm and unyielding.

The projections g on the stem head and the bosses or sockets m on the plate c0n stitute locking members for yieldingl y' locking the button in either of two positions. While the locking members on the stem head are projections, and while those on the plate are recesses, it is obvious that the 2'; rangement may be reversed, the members on the plate being projections and. those on the stem head, recesses.

T he above-described permanent connection. between the button and the stem is effected after the assemblage of the parts, the stem being first inserted in the socket formed for its reception in the button, as shown in Fig. 7. Subsequently the sides of the button are pressed inwardly to form the lot-kn proiw-tions or jaws (1, as shown in Fig. 4.

l-chiini I l. carriage curtain fastener comprising :1 bnsc. a shank formed thereon. the base and filmllli having it recess which is open at the under side of the base, it button mounted on the outer end of the shank, a stem =1!"- lixed to the button, and adapted to rotunand move ondwiso in :1. bearing in the shank,

emcee said stem having a head at-its inner end provided with locking members, 9. plate bearing on the head and rovided with complemental locking members, adapted to engage the members on the stem, and a spring located in the recess, and adapted to hold the locking members of the plate'in yielding engagement with the locking members of the head, the spring being compressible by outward pressure exerted on the button.

2. A carriage curtain fastener comprising a base, a shank formed thereon, a. button having an inner end face formed to bear on the outer end face of the shanltjend provided with a socket, the base and shank being provided with a recess, 9. stem inserted in said socket, and provided with recesses,

the button being compressed to form pro jections or jews engaging the recesses of the stem, the said stem having a head at its inner end provided with looking members, aplete bearing on the head and provided with cornpleinental locking members, and a spring located in the recess, and adapted to hold the lockingmembers of the plate in yielding engagement with the locking members of the head. in testimony whereof I have :r fliXed -i'iy signature. in presence of two witnesses. WILLIAM S. JONAl-l.

\l'itnesses THOMAS F. BARRY, Jon): M. BURKE. 

